9. The sinking of Titanic in 1912 was a(n) _____ in which more than 1,500 people died.
(A)attribution
(B)enigma
(C)qualm
(D)retort
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統計: A(13), B(195), C(48), D(27), E(0) #569498
統計: A(13), B(195), C(48), D(27), E(0) #569498